diff --git a/app/models/concerns/dossier_searchable_concern.rb b/app/models/concerns/dossier_searchable_concern.rb
index 78eb5dd02..2b52fe668 100644
--- a/app/models/concerns/dossier_searchable_concern.rb
+++ b/app/models/concerns/dossier_searchable_concern.rb
@@ -18,7 +18,9 @@ module DossierSearchableConcern
         *champs_public.flat_map(&:search_terms),
         *etablissement&.search_terms,
         individual&.nom,
-        individual&.prenom
+        individual&.prenom,
+        mandataire_first_name,
+        mandataire_last_name
       ].compact_blank.join(' ')
 
       private_search_terms = champs_private.flat_map(&:search_terms).compact_blank.join(' ')
diff --git a/spec/models/concerns/dossier_searchable_concern_spec.rb b/spec/models/concerns/dossier_searchable_concern_spec.rb
index ae9325d7d..069a6696e 100644
--- a/spec/models/concerns/dossier_searchable_concern_spec.rb
+++ b/spec/models/concerns/dossier_searchable_concern_spec.rb
@@ -56,5 +56,13 @@ describe DossierSearchableConcern do
         end
       end
     end
+
+    context 'mandataire' do
+      it "update columns" do
+        dossier.update(mandataire_first_name: "Chris")
+        perform_enqueued_jobs(only: DossierIndexSearchTermsJob)
+        expect(result["search_terms"]).to include("Chris")
+      end
+    end
   end
 end